National Weather ServiceA hard freeze warning has been issued for the area in dark blue north and west of the lake. A freeze warning has been issued for the area in light blue south of the lake.

A freeze warning is in effect from midnight tonight until 8 a.m. tomorrow for much of the rest of southeastern Louisiana, including New Orleans; upper Jefferson, St. Bernard and Plaquemines parishes; and St. John the Baptist and St. Charles parishes.

Low temperatures ranging from 27 to 31 degrees will be seen near the Mississippi River, the West Bank of the New Orleans area, and the River Parishes. The temperature will be between 32 and 35 degrees on the East Bank.

Sub-freezing temperatures could last from 3 to 7 hours in most areas, but only 2 hours or less on the East Bank, and will impact people, plants and pets outdoors.

The hard freeze warning will be in effect for St.. Tammany Parish and areas to the north from 10 p.m. this evening to 8 a.m. Friday, with temperatures falling into the mid-20s for several hours. Temperatures will fall below freezing between 8 p.m. and 10 p.m.

Slidell could experience temperatures at or below 26 degrees for four hours.

Hard freeze conditiions will kill crops and other sensitive vegetation, and impact people and pets outdoors. Unprotected water pipes may freeze.